Question

why are coal, petroleum and natural gas called fossil fuels?​

Answer 1

Coal, Oil and Gas are called "fossil fuels" because they have been formed from the fossilized remains of prehistoric plants and animals. Fossil fuels are a nonrenewable energy source since they take millions of years to form.

Answer 2

$\huge \mathscr\pink{Your\:Answer:-}$

Petroleum, natural gas, and coal are classified as fossil fuels. The reason they are called fossil fuels is because :-

☯They are all made from decayed plants and animals that have been preserved in the earth's crust by pressure, bacterial processes and heat.

☯ It takes millions of years for these organisms to chemically change into fossil fuels.